Journal Article

Partial Characterization of a 17 kDa Acidic Protein, EFP, Induced by Thiocarbamate in the Early Flowering Phase in Asparagus Seedlings

Dennis Yeo, Tomoko Abe, Hiroshi Abe, Akira Sakurai, Koji Takio, Naoshi Dohmae, Nobutaka Takahashi and Shigeo Yoshida

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 37, issue 7, pages 935-940
Published in print October 1996 | ISSN: 0032-0781
e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/oxfordjournals.pcp.a029042
Partial Characterization of a 17 kDa Acidic Protein, EFP, Induced by Thiocarbamate in the Early Flowering Phase in Asparagus Seedlings

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Asparagus officinalis seedlings treated with either thiocarbamates or carbamates are induced to flower within 2-3 weeks of application. SDS-PAGE and 2-D PAGE resolutions of total soluble proteins of treated seedlings showed the accumulation of an acidic 17 kDa polypeptide. Partialmino acid sequence of the acidic protein showed homology to the wound-responsive A. officinalisPR 1, AoPRl. We named this protein EFP, early flowering protein, owing to its advanced appearance during the early transition from vegetative to floral phase. Carbamates and thiocarbamates that induced more than 80% flowering rates corresponded with increased level of EFP while compounds that are weak flower inducers showed reduced amount of EFP. The observation thus denned the correlationship of EFP to variable flowering rates.

Keywords: Asparagus; Carbamate; Flower; Intracellular PR; 2-D PAGE; Thiocarbamate

Journal Article.  0 words. 

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

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